pounds

Latin, libra.

The pound has been one of the basic denominations of the English
currency for over a millennium. Until replaced by the present system in
1971, there were 12 penceto the shillingand 20 shillings (or 240 pence) to the pound.

Pounds and shillings were monies of account; only the penny was a coin.

For more detail on the coinage, see R.H.M. [Michael] Dolley, The Norman Conquest and the English coinage (1966); and Sally P.J. Harvey, Domesday: Book of Judgement (2013), chapter 6 and appendix 1..